Crate snow

The snow crate is a straightforward, Hard To Fuck Up™ Noise Protocol implementation.

Read the Noise Protocol Framework Spec for more information.

The typical usage flow is to use NoiseBuilder to construct aNoiseSession<HandshakeState>, which can transition to a NoiseSession<TransportState> once the handshake is completed.

Examples

See examples/simple.rs for a more complete TCP client/server example.

let noise = NoiseBuilder::new("Noise_NN_ChaChaPoly_BLAKE2s".parse().unwrap())
                         .build_initiator()
                         .unwrap();

let mut buf = [0u8; 65535];

// write first handshake message
noise.write_message(&[0u8; 0], &mut buf).unwrap();

// receive response message
let incoming = receive_message_from_the_mysterious_ether();
noise.read_message(&incoming, &mut buf).unwrap();

// complete handshake, and transition the state machine into transport mode
let noise = noise.into_transport_mode();

Structs

HandshakeState
NoiseBuilder	Generates a NoiseSession and also validate that all the prerequisites for the given parameters are satisfied.
NoiseParams	The set of choices (as specified in the Noise spec) that constitute a full protocol definition.
NoiseSession	The high-level state machine for the flow from handshake to transport stages.
TransportState

Enums

BaseChoice
CipherChoice
DHChoice
HandshakePattern
HashChoice
NoiseError

Traits

CipherStateType
CipherType
DhType
HashType
NoiseSessionState
RandomType